/// <summary>
/// Function updates buffer with verticies
/// </summary>
/// <param name="buffer">Full buffer</param>
/// <param name="bufferData">Array with data</param>
/// <param name="bufferIndex">Index of changing buffer</param>
public static void updateVertexBufferFully(VAO buffer, VBOArrayF bufferData)
{
GL.BindBuffer(BufferTarget.ArrayBuffer, buffer.Vbo[0]);
GL.BufferSubData(BufferTarget.ArrayBuffer, new IntPtr(0),
bufferData.getAtrributeByteSize(0), bufferData.Vertices);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
public static void cleanUp(VAO buffer)
{
GL.DeleteBuffers(buffer.getBuffersCount(), buffer.Vbo);
if (buffer.getBufferData().Indices != null)
{
GL.DeleteBuffers(1, buffer.Ibo);
}
GL.DeleteVertexArrays(1, buffer.Vao);
}
public static void renderBuffers(VAO buffer, PrimitiveType privitiveMode)
{
GL.BindVertexArray(buffer.Vao[0]);
if (buffer.getBufferData().Indices != null)
{
GL.DrawElements(privitiveMode, buffer.getBufferData().Indices.Length, DrawElementsType.UnsignedInt, 0);
}
else
{
GL.DrawArrays(privitiveMode, 0, buffer.getBufferData().getCountVertices());
}
GL.BindVertexArray(0);
}
public static void genVAO(VAO buffers)
{
if (buffers.isMapped())
{
return; //Проверка ,что генерируем буфферы 1 раз
}
GL.GenVertexArrays(1, buffers.Vao); // Gen vao
GL.GenBuffers(buffers.getBuffersCount(), buffers.Vbo); //Генерируем заданное количество vbo
if (buffers.getBufferData().Indices != null) // Gen ibo
{
GL.GenBuffers(1, buffers.Ibo);
}
buffers.mapBuffer(); //Устанавливаем флаг, что буфферы сгенерированы
}
public static void AddUserVectorAttribute(VAO buffer, Int32 attributeIndex, float[,] value, IntPtr offset, IntPtr size)
{
Int32 bufferIndex = 0;
for (Int32 i = 0; i < (8 + attributeIndex); i++)
{
if (buffer[i])
{
bufferIndex++;
}
}
GL.BindBuffer(BufferTarget.ArrayBuffer, buffer.Vbo[bufferIndex]);
GL.BufferSubData(BufferTarget.ArrayBuffer, offset, size, value);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
public static void setBufferData(BufferTarget bufferType, VAO buffer)
{
if (buffer.isDataInserted())
{
return; //Проверка что заносим информацию в буфферы 1 раз
}
byte bufferCount = 0;
//***************************************Bind VAO***********************//
GL.BindVertexArray(buffer.Vao[0]);
// ************************************************
// Bind ibo for indexes
// ************************************************
if (buffer.getBufferData().Indices != null)
{
GL.BindBuffer(BufferTarget.ElementArrayBuffer, buffer.Ibo[0]); //Bind IBO
GL.BufferData(BufferTarget.ElementArrayBuffer, buffer.getBufferData().getIndicesByteSize(),
buffer.getBufferData().Indices, BufferUsageHint.StaticDraw);
}
// ************************************************
// Bind vbo for vertices
// ************************************************
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]); //Вершины
GL.BufferData(bufferType, buffer.getBufferData().getVerticesByteSize(),
buffer.getBufferData().Vertices, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, 0, 0);
bufferCount++;
// ************************************************
// Bind vbo for normals
// ************************************************
if (buffer.getBufferData().Normals != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getNormalsByteSize(),
buffer.getBufferData().Normals, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(1);
GL.VertexAttribPointer(1, 3, VertexAttribPointerType.Float, false, 0, 0);
bufferCount++;
}
// ************************************************
// Bind vbo for texture coordinates
// ************************************************
if (buffer.getBufferData().TextureCoordinates != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getTexCoordByteSize(),
buffer.getBufferData().TextureCoordinates, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(2);
GL.VertexAttribPointer(2, 2, VertexAttribPointerType.Float, false, 0, 0);
bufferCount++;
}
// ************************************************
// Bind vbo for color values
// ************************************************
if (buffer.getBufferData().Color != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getColorByteSize(),
buffer.getBufferData().Color, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(3);
GL.VertexAttribPointer(3, 3, VertexAttribPointerType.Float, false, 0, 0);
bufferCount++;
}
// ************************************************
// Bind vbo for tangents
// ************************************************
if (buffer.getBufferData().Tangent != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getTangentByteSize(),
buffer.getBufferData().Tangent, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(4);
GL.VertexAttribPointer(4, 3, VertexAttribPointerType.Float, false, 0, 0);
bufferCount++;
}
// ************************************************
// Bind vbo for bitangents
// ************************************************
if (buffer.getBufferData().Bitangent != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getBitangentByteSize(),
buffer.getBufferData().Bitangent, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(5);
GL.VertexAttribPointer(5, 3, VertexAttribPointerType.Float, false, 0, 0);
bufferCount++;
}
// ************************************************
// Bind vbo for userSingleAttributes1
// ************************************************
if (buffer.getBufferData().SingleAttribute1 != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getSingleAttribute1Size(),
buffer.getBufferData().SingleAttribute1, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(6);
GL.VertexAttribPointer(6, 1, VertexAttribPointerType.Float, false, 0, 0);
GL.VertexAttribDivisor(6, 1);
bufferCount++;
}
// ************************************************
// Bind vbo for userSingleAttributes2
// ************************************************
if (buffer.getBufferData().SingleAttribute2 != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getSingleAttribute2Size(),
buffer.getBufferData().SingleAttribute2, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(7);
GL.VertexAttribPointer(7, 1, VertexAttribPointerType.Float, false, 0, 0);
GL.VertexAttribDivisor(7, 1);
bufferCount++;
}
// ************************************************
// Bind vbo for userVectorAttributes1
// ************************************************
if (buffer.getBufferData().VecAttribute1 != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getVectorAttribute1Size(),
buffer.getBufferData().VecAttribute1, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(8);
GL.VertexAttribPointer(8, 4, VertexAttribPointerType.Float, false, 0, 0);
GL.VertexAttribDivisor(8, 1);
bufferCount++;
}
// ************************************************
// Bind vbo for userVectorAttributes2
// ************************************************
if (buffer.getBufferData().VecAttribute2 != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getVectorAttribute2Size(),
buffer.getBufferData().VecAttribute2, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(9);
GL.VertexAttribPointer(9, 4, VertexAttribPointerType.Float, false, 0, 0);
GL.VertexAttribDivisor(9, 1);
bufferCount++;
}
// ************************************************
// Bind vbo for userVectorAttributes3
// ************************************************
if (buffer.getBufferData().VecAttribute3 != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getVectorAttribute3Size(),
buffer.getBufferData().VecAttribute3, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(10);
GL.VertexAttribPointer(10, 4, VertexAttribPointerType.Float, false, 0, 0);
GL.VertexAttribDivisor(10, 1);
bufferCount++;
}
// ************************************************
// Bind vbo for userVectorAttributes4
// ************************************************
if (buffer.getBufferData().VecAttribute4 != null)
{
GL.BindBuffer(bufferType, buffer.Vbo[bufferCount]);
GL.BufferData(bufferType, buffer.getBufferData().getVectorAttribute4Size(),
buffer.getBufferData().VecAttribute4, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(11);
GL.VertexAttribPointer(11, 4, VertexAttribPointerType.Float, false, 0, 0);
GL.VertexAttribDivisor(11, 1);
bufferCount++;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, 0); //Отвязываем VBO
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0); //Отвязываем IBO
GL.BindVertexArray(0); //Отвязываем VAO
GL.DisableVertexAttribArray(0);
if (buffer.getBufferData().Normals != null)
{
GL.DisableVertexAttribArray(1);
}
if (buffer.getBufferData().TextureCoordinates != null)
{
GL.DisableVertexAttribArray(2);
}
if (buffer.getBufferData().Color != null)
{
GL.DisableVertexAttribArray(3);
}
if (buffer.getBufferData().Tangent != null)
{
GL.DisableVertexAttribArray(4);
}
if (buffer.getBufferData().Bitangent != null)
{
GL.DisableVertexAttribArray(5);
}
// Data is inserted
buffer.dataInserted();
}
public static void renderInstanced(VAO buffer, PrimitiveType primitiveMode, Int32 count)
{
GL.BindVertexArray(buffer.Vao[0]);
GL.DrawArraysInstanced(primitiveMode, 0, buffer.getBufferData().getCountVertices(), count);
GL.BindVertexArray(0);
}